I can enclose you can enclose he can enclose we can enclose you can enclose they can enclose
V-ing form
I can be enclosing you can be enclosing he can be enclosing we can be enclosing you can be enclosing they can be enclosing
Perfect
I can have enclosed you can have enclosed he can have enclosed we can have enclosed you can have enclosed they can have enclosed
V-ing perfect
I can have been enclosing you can have been enclosing he can have been enclosing we can have been enclosing you can have been enclosing they can have been enclosing
Negation
Simple form
I cannot enclose you cannot enclose he cannot enclose we cannot enclose you cannot enclose they cannot enclose
V-ing form
I cannot be enclosing you cannot be enclosing he cannot be enclosing we cannot be enclosing you cannot be enclosing they cannot be enclosing
Perfect
I cannot have enclosed you cannot have enclosed he cannot have enclosed we cannot have enclosed you cannot have enclosed they cannot have enclosed
V-ing perfect
I cannot have been enclosing you cannot have been enclosing he cannot have been enclosing we cannot have been enclosing you cannot have been enclosing they cannot have been enclosing
Interrogative form
Simple form
can I enclose? can you enclose? can he enclose? can we enclose? can you enclose? can they enclose?
V-ing form
can I be enclosing? can you be enclosing? can he be enclosing? can we be enclosing? can you be enclosing? can they be enclosing?
Perfect
can I have enclosed? can you have enclosed? can he have enclosed? can we have enclosed? can you have enclosed? can they have enclosed?
V-ing perfect
can I have been enclosing? can you have been enclosing? can he have been enclosing? can we have been enclosing? can you have been enclosing? can they have been enclosing?
Interro-negative form
Simple form
can I not enclose? can you not enclose? can he not enclose? can we not enclose? can you not enclose? can they not enclose?
V-ing form
can I not be enclosing? can you not be enclosing? can he not be enclosing? can we not be enclosing? can you not be enclosing? can they not be enclosing?
Perfect
can I not have enclosed? can you not have enclosed? can he not have enclosed? can we not have enclosed? can you not have enclosed? can they not have enclosed?
V-ing perfect
can I not have been enclosing? can you not have been enclosing? can he not have been enclosing? can we not have been enclosing? can you not have been enclosing? can they not have been enclosing?